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Issue 4, 2019
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Boosting the ultra-stable unencapsulated perovskite solar cells by using montmorillonite/CH3NH3PbI3 nanocomposite as photoactive layer

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Abstract

The power conversion efficiency of the perovskite solar cell is high enough to be commercially viable. However, long-term stability is the inevitable issue that obstructs its commercialization. Here, we demonstrate that the half-year (∼4680 h) stable unencapsulated inverted solar cell has almost zero loss in performance, measured under controlled environmental condition, when using montmorillonite (MMT)/CH3NH3PbI3 nanocomposite as photoactive layer. It yields up to 17.29% in power conversion efficiency, owing to the formation of an outstandingly dense gas permeation barrier of exfoliated MMT shell that effectively retards the moisture from penetrating into the perovskite. It is believed that this extensively modified device and low-cost architecture will compellingly lead to the timely commercialization of perovskite solar cells.

Graphical abstract: Boosting the ultra-stable unencapsulated perovskite solar cells by using montmorillonite/CH3NH3PbI3 nanocomposite as photoactive layer

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Supplementary files

Article information


Submitted
08 Oct 2018
Accepted
28 Nov 2018
First published
28 Nov 2018

Energy Environ. Sci., 2019,12, 1265-1273
Article type
Paper

Boosting the ultra-stable unencapsulated perovskite solar cells by using montmorillonite/CH3NH3PbI3 nanocomposite as photoactive layer

H. Huang, Y. Shih, L. Wang and K. Lin, Energy Environ. Sci., 2019, 12, 1265
DOI: 10.1039/C8EE02958J

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